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by KEVANS02
Sat Aug 11, 2007 6:11 pm
Forum: Appliances in the Home Forum
Topic: No hot water coming through my combination boiler
Replies: 4
Views: 4719

sound to me like the diverter valve needs a sevice kit fitting. diapragm has prob worn depending on make
by KEVANS02
Wed Apr 18, 2007 8:38 pm
Forum: Plumbing Forum
Topic: Closed Central Heating System
Replies: 1
Views: 3711

YES IT IS POSS , JUST NEED A FREEZE KIT PROB CHEAPER FOR U TO JUST DRAIN DOWN
by KEVANS02
Thu Mar 22, 2007 9:24 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: worcester 24cdi
Replies: 1
Views: 4491

if i remember correctly this fault indicates an air pressure problem, this can be that the fan isnt running,or the air pressure switch is faulty, or the air pressure tubes are damaged or have come disconnected. could also be a blocked flue.

i am 95 % sure that this is the fault,

hope this helps
by KEVANS02
Thu Mar 22, 2007 9:17 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: central heating system
Replies: 1
Views: 3969

Can you see if the boiler is firing or not????
by KEVANS02
Thu Mar 22, 2007 9:15 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: help needed with central heating
Replies: 3
Views: 4799

From what you said it seems as if the central heating system pumping over and out of the vent pipe into the feed and expansion tank. this can be caused by a restriction or blockage in the central heading system. with nowhere for the water to circulate the water is forced up the vent pipe and into th...
by KEVANS02
Thu Mar 22, 2007 9:10 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: BAXI Central heating problem
Replies: 1
Views: 4180

You could be right about the 3 port diverter valve, there should be a lever on the valve which opens with a call for central heating. when the valve is closed it is in hotwater mode this is probably why the the boiler works on hot water and not heating. i whould guess that the synchron motor inside ...
by KEVANS02
Thu Mar 22, 2007 9:04 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: combi pressure gauge reads 0
Replies: 1
Views: 4217

When you bled your radiators you also released the pressure in the system, to increase the pressure you must locate the filling loop which will be located near the boiler (most of the time) use this to increase the pressure in the system. you can then bleed the rest of the rads but remember to check...
by KEVANS02
Sat Mar 17, 2007 8:51 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Loud Potterton Lynx 2
Replies: 2
Views: 4889

sounds to me that the boiler may be overheating , this may be that the diverter valve may be sticking which doesnt allow the excess heat to be disapated.
by KEVANS02
Sat Mar 17, 2007 8:41 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: radiators won't heat up but pump motor is running
Replies: 8
Views: 25126

You can flush eack radiator out manually but if the system is badly sludged then the best way of removing the sludge is by use of a flushing machine. But you must be aware that there wil be an underlying fault causing the system to sludge and this will need correcting aswell oterwise the problem wil...
by KEVANS02
Wed Mar 14, 2007 9:09 pm
Forum: Plumbing Forum
Topic: General plumbing
Replies: 3
Views: 4883

i guess your how water is heated via a combi boiler if this is the case then if you turn the mains cold water stoptap off then this will stop both hot and cold water to taps

hope this helps , kev
by KEVANS02
Wed Mar 14, 2007 8:42 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Combi Boilers
Replies: 5
Views: 6399

The fault is more than likely to be the exapnsion vessel. it may have lost its charge or the diaphragm inside may have split. worst case will be you need a new vessel , best case it will just need recharging

hope this helps , kev
by KEVANS02
Wed Mar 14, 2007 8:28 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Radiators stay hot
Replies: 4
Views: 4651

Sounds to me like your zone or diverter valve is faulty and allowing the water to flow pass the valve when it should be off, the cause of this is probably dirt on the valve seating stopping it sealing shut. the only way of curing this is to replace the insides of the valve if possible or just by rep...
by KEVANS02
Wed Mar 14, 2007 8:21 pm
Forum: Central Heating and Air conditioning and Ventilation Forum
Topic: Water not getting hot
Replies: 3
Views: 5133

what type of system is it?, it may be that the microswitch inside the valve is faulty and not switching on the boiler and pump...(does the pump run when the valve opens. the valve may be passing allow the hot water tank to be heated when the heating is on ( this will give hotter water from the taps ...
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